<div class="control-group">
  <label for="show">Show component condition</label>
  <input id="show" name="show" type="text" placeholder="an valid expression" value="{$show|default:'true'}"/>
</div>

<div class="control-group">
  <label for="class">Classes</label>
  <input id="class" name="class" type="text" placeholder="CSS classes" value="{$class|default:'alert alert-info clearfix'}" />
</div>

<div class="control-group">
  <label for="id">ID</label>
  <input id="id" name="id" type="text" placeholder="DIV's ID" value="{$id|default:''}" />
</div>
